CN116429208B - High-temperature and high-pressure sealing compensation type guided wave radar level gauge measuring assembly - Google Patents
High-temperature and high-pressure sealing compensation type guided wave radar level gauge measuring assembly Download PDFInfo
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- CN116429208B CN116429208B CN202310701981.1A CN202310701981A CN116429208B CN 116429208 B CN116429208 B CN 116429208B CN 202310701981 A CN202310701981 A CN 202310701981A CN 116429208 B CN116429208 B CN 116429208B
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- 238000007789 sealing Methods 0.000 title claims abstract description 133
- 230000017525 heat dissipation Effects 0.000 claims abstract description 33
- 238000009413 insulation Methods 0.000 claims abstract description 27
- 238000005259 measurement Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000002955 isolation Methods 0.000 claims abstract description 12
- 230000006835 compression Effects 0.000 claims description 23
- 238000007906 compression Methods 0.000 claims description 23
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 17
- 229910002804 graphite Inorganic materials 0.000 claims description 17
- 239000010439 graphite Substances 0.000 claims description 17
- 238000012360 testing method Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 5
- 238000013461 design Methods 0.000 abstract description 8
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- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
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- 239000000126 substance Substances 0.000 description 2
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/027—Constructional details of housings, e.g. form, type, material or ruggedness
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention belongs to the field of electronic measurement, and particularly relates to a high-temperature and high-pressure sealing compensation type guided wave radar level gauge measuring assembly. The heat insulation device comprises an instrument isolation cover, wherein an upper sealing structure is arranged at the lower part of the instrument isolation cover, a heat dissipation section is arranged between the upper sealing structure and a middle sealing structure, a lower sealing structure is arranged at the lower section of the middle sealing structure, a shell is sleeved outside the middle sealing structure, a flange is connected to the outer part of the shell, a guide cylinder is connected to the lower part of the shell, and a compensation structure and a support piece are arranged in the guide cylinder. The invention has the beneficial effects that: the invention adopts a multi-layer sealing design and a tightness verification design. The novel steam compensation device is adopted by the measuring assembly, and the device can remarkably reduce interference of condensed water and steam polarization effects in the measuring working condition, and reduce amplification influence of interference by optimizing the size of the steam compensation device.
Description
Technical Field
The invention belongs to the field of electronic measurement, and particularly relates to a high-temperature and high-pressure sealing compensation type guided wave radar level gauge measuring assembly.
Background
The utility model relates to a radar level gauge with a wave guide, which is an emerging level gauge based on a Time Domain Reflection (TDR) principle, and is a product of combining a non-contact radar and a wave guide antenna, wherein the gauge transmits electromagnetic wave signals to the wave guide, the wave guide is used as a transmission medium of signals, when substances with different densities (or substances with different dielectric constants) are encountered, partial signals of the radar level gauge are reflected to form echoes and return to a signal transmitting device (receiving antenna) along the same path, and the level height is calculated according to the time difference of the transmitted signals and the echo signals. The guided wave radar liquid level instrument is not influenced by factors such as measuring environment, measuring medium and the like, and is widely applied to the field of industrial measurement.
The secondary loop of the nuclear power plant needs to be subjected to a negative pressure working condition, a high temperature, a high pressure saturated steam working condition and a power change working condition, and the traditional liquid level meter (such as a differential pressure liquid level meter, a float type liquid level meter and the like) cannot realize accurate measurement under all working conditions. The key equipment (such as a high-pressure heater and a steam-water separator reheater) of the two loops is in the working condition of high-temperature and high-pressure saturated steam, the working condition is changed frequently, and the temperature, the pressure and the medium density are changed correspondingly. The traditional liquid level meter such as a differential pressure liquid level meter and a pontoon type liquid level meter has larger thermal state measurement deviation due to the measurement principle of the traditional liquid level meter and the pontoon type liquid level meter, needs to input the current pressure and temperature for thermal state compensation, needs to be calibrated regularly, greatly increases maintenance workload, and can not work in the negative pressure for measuring the liquid level.
The high-temperature high-pressure sealing compensation type guided wave radar liquid level meter is an emerging high-end industrial automatic liquid level meter based on a guided wave radar principle and a sealing steam compensation technology. In the high-temperature and high-pressure saturated steam environment of the two loops, the dielectric constants of steam and water can be changed, particularly, the steam polarization effect, the dielectric constant change of a propagation medium can directly influence the speed of electromagnetic waves, if a reference steam compensation technology is not adopted, larger measurement deviation can be directly caused, and the steam compensation is essentially to compensate the speed of the electromagnetic waves. For example, in an environment of 300 ℃ and 10MPa, the relative dielectric constant of water is reduced from 78.5 to 18, the relative dielectric constant of steam is increased from 1.0 to 1.5, the increase of the dielectric constant of steam can slow down the propagation speed of electromagnetic waves in a waveguide rod, and if compensation measures for the dielectric constant of gas phase are not adopted, the measurement error of up to 20% can be caused.
Due to the design reasons of the instrument, the existing measuring assembly has leakage faults and unstable steam compensation faults in practical application. The leakage fault refers to the failure of the high-temperature seal of the measuring assembly, so that the medium in the measuring environment and the sealing structure of the measuring assembly are subjected to heat aging, heat corrosion, permeation, micro vibration and other mechanisms to leak, and the instrument is failed. The unstable fault of steam compensation refers to that the steam compensation structure of the measuring assembly is unreasonable in design and is easily interfered by external environment to cause the distortion of the measured value.
Disclosure of Invention
The invention aims to provide a high-temperature and high-pressure sealing compensation type guided wave radar liquid level meter measuring component, which can solve the problems of leakage faults, unstable steam compensation and the like existing in the actual application of the existing high-temperature and high-pressure type guided wave radar liquid level meter measuring component.
The technical scheme of the invention is as follows: the utility model provides a high temperature, high pressure seal compensation type guided wave radar level gauge measurement assembly, includes the instrument cage, instrument cage lower part install upper portion seal structure, install the heat dissipation section between upper portion seal structure and the middle part seal structure, lower part seal structure is installed to the lower part of middle part seal structure, middle part seal structure overcoat is equipped with the shell, shell external connection has the flange, the lower part of shell is connected with the guide cylinder, is equipped with compensation structure and support piece in the guide cylinder.
The upper sealing structure comprises a compression nut and a sealing ring, wherein the compression nut is arranged in an instrument isolation cover, a through hole is formed in the middle of the compression nut, the upper part of the guided wave core rod penetrates through the through hole of the compression nut, the lower part of the compression nut is connected with a heat dissipation section, the heat dissipation section is connected with the instrument isolation cover, a through hole structure is arranged in the middle of the heat dissipation section, and a middle sealing structure is arranged in the through hole.
The middle sealing structure comprises a first heat-insulating sealing piece, a guided wave core rod is sleeved in the middle of the first heat-insulating sealing piece, the sealing ring comprises an inner sealing ring and an outer sealing ring, the inner sealing ring is arranged on the inner side of the top end of the first heat-insulating sealing piece, and the outer sealing ring is arranged on the outer side of the top end of the first heat-insulating sealing piece.
The lower seal structure includes a first graphite gasket, a second graphite gasket, and a second insulating seal.
The lower part of the heat dissipation section is sleeved in the shell, the bottom of the heat dissipation section is contacted with a second heat insulation sealing piece, a through hole is formed in the middle of the second heat insulation sealing piece, the heat dissipation section is provided with an inner sealing structure and an outer sealing structure, the outer sealing structure is formed by installing a second graphite gasket between the second heat insulation sealing piece, the heat dissipation section and the shell, and the first graphite gasket is installed between the second heat insulation sealing piece and the first heat insulation sealing piece.
The second heat insulation sealing piece is provided with a condensed water diversion structure and adopts an inverted cone structure.
The outer part of the shell is sleeved with a flange, the guide cylinder is positioned below the flange, and the guide cylinder is connected with the shell.
The cylinder walls of the guide cylinders are equidistantly distributed with communication holes along the same vertical direction, supporting pieces are equidistantly arranged in the guide cylinders from top to bottom, and the tail end supporting pieces are arranged at the end parts of the guide cylinders.
The middle of the guided wave core rod is provided with a compensation structure, the diameter of the compensation structure is larger than that of the guided wave core rod, the upper part of the guided wave core rod is inserted into the sealing piece, the first heat insulating sealing piece and the compression nut, the middle section of the guided wave core rod is connected with the compensation structure, and the lower part of the guided wave core rod is inserted into the measuring medium.
And the heat dissipation section is provided with a sealing test hole.
The invention has the beneficial effects that: the invention adopts a multi-layer sealing design and a tightness verification design. The novel steam compensation structure is adopted by the measuring assembly, the device can remarkably reduce interference of condensed water and steam polarization effects in the measuring working condition, and the amplification influence of the interference is reduced by optimizing the size of the steam compensation structure. In a high-temperature and high-pressure gas-liquid two-phase environment, the high-temperature and high-pressure sealing heat insulation structure can ensure that the measuring assembly can not leak to cause unavailability of the instrument, and can not cause heat insulation and poor heat dissipation performance of the instrument to cause heat aging of an instrument processor. The measuring component can be suitable for the hydrophobic liquid level measurement of a high-pressure heater, a low-pressure heater, a condenser and a steam-water separation reheater of a nuclear power plant secondary loop, and can provide accurate liquid level measurement data for a unit under various working conditions (negative pressure, normal pressure, high-pressure high-temperature and low-temperature environments) and working condition changes of the loop.
Drawings
FIG. 1 is a schematic diagram of a high temperature and high pressure seal compensation type guided wave radar level gauge measuring assembly according to the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 1;
FIG. 4 is a view in the direction C-C of FIG. 1;
fig. 5 is a view in the direction D-D of fig. 1.
In the figure: 1 instrument cage, 2 gland nut, 3 nut, 4 sealing rings, 5 heat dissipation section, 6 first insulating sealing member, 7a first graphite gasket, 7b first graphite gasket, 8 second insulating sealing member, 9 shell, 10 guided wave core bar, 11 flange, 12 guide cylinder, 13 compensating structure, 14 support piece, 15 terminal support piece, 16 seal test hole.
Detailed Description
The invention will be described in further detail with reference to the accompanying drawings and specific examples.
As shown in fig. 1-5, a high-temperature and high-pressure sealing compensation type guided wave radar level gauge measuring assembly comprises an instrument isolation cover 1, a compression nut 2, a nut 3, a sealing ring 4, a heat dissipation section 5, a first heat insulation sealing piece 6, a graphite gasket, a second heat insulation sealing piece 8, a shell 9, a guided wave core bar 10, a flange 11, a guide cylinder 12, a compensation structure 13, a supporting piece 14, an end supporting piece 15 and a sealing test hole 16.
Wherein, instrument cage 1 establishes at the device top and provides the mounted position for instrument treater to reduce instrument treater's heat radiation, measurement assembly includes upper portion seal structure, middle part seal structure, lower part seal structure.
The lower part of the instrument isolation cover 1 is provided with an upper sealing structure, a heat dissipation section 5 is arranged between the upper sealing structure and a middle sealing structure, the lower section of the middle sealing structure is provided with a lower sealing structure, a shell 9 is sleeved outside the middle sealing structure, the outer part of the shell 9 is connected with a flange 11, the lower part of the shell 9 is connected with a guide cylinder 12, a compensation structure 13, a supporting piece 14 and a tail end supporting piece 15 are arranged in the guide cylinder 12.
The upper sealing structure comprises a compression nut 2, a nut 3 and a sealing ring 4, wherein the compression nut 2 is arranged in an instrument isolation cover 1, a through hole is formed in the middle of the compression nut 2, the upper part of a guided wave core rod 10 penetrates through the through hole of the compression nut 2 and is connected together through the nut 3 arranged at the top end of the compression nut, an O-shaped sealing ring is arranged between the nut 3 and the compression nut, the compression nut 2 is used for compressing and sealing a measuring assembly (the guided wave core rod 10), a heat dissipation section 5 is connected to the lower part of the compression nut 2 through threads, the heat dissipation section 5 is connected with the instrument isolation cover 1, annular fins are arranged outside the heat dissipation section 5, a through hole structure is arranged in the middle of the heat dissipation section 5, a middle sealing structure is arranged in the through hole, the middle sealing structure comprises a first heat insulation sealing piece 6, the first heat insulation sealing piece 6 comprises a group of standard annular heat insulation sealing pieces, materials have good high temperature resistance and high pressure resistance, have small thermal expansion coefficients, and can bear high temperatures of 500 ℃ for a long time by adopting aluminum oxide, zirconia, magnesia ceramics or high polymer materials. The middle of the first heat insulating sealing piece 6 is sleeved with a guided wave core bar 10; as shown in fig. 2, the sealing ring 4 is divided into an inner O-ring and an outer O-ring, the inner sealing ring is installed inside the top end of the first heat insulating sealing member 6 for sealing leakage and seepage between the heat insulating sealing ceramic and the guided wave core rod 10, and the outer sealing ring is installed outside the top end of the first heat insulating sealing member for sealing leakage and seepage between the first heat insulating sealing member 6 and the heat dissipation segment 5. The sealing ring 4 is made of PEEK.
The lower seal structure comprises a first graphite gasket 7a, a second graphite gasket 7b and a second insulating seal 8. The lower part suit of heat dissipation section 5 is in shell 9, and the bottom of heat dissipation section 5 contacts with second adiabatic sealing member 8, and open in the middle of the second adiabatic sealing member 8 has the through-hole and has inside and outside layer seal structure, and outer layer seal structure adopts L graphite annular packing to install between second adiabatic sealing member 8, heat dissipation section 5, shell 9 for second graphite gasket 7b, and shell 9 and heat dissipation section 5 junction are equipped with welded seal, and the welding mode adopts the build-up welding. A first graphite gasket 7a is installed between the second heat insulating seal 8 and the first heat insulating seal 6; the guided wave core rod 10 passes through the middle through hole of the second heat insulation sealing piece 8 and is integrally cast and formed, so that the assembly gap is reduced, and the guided wave core rod 10 is sealed; the second heat insulation sealing piece 8 is provided with a condensed water diversion structure, and due to the inverted cone design, condensed water cannot be accumulated after being formed and flows down along the guided wave core rod 10, so that the interference of the condensed water on liquid level measurement is avoided, and the performance instrument value seriously drifts.
The outside of the shell 9 is sleeved with a flange in a welding mode, the guide cylinder 12 is positioned below the flange 11, and the guide cylinder 12 and the shell 9 adopt receiving welding.
The wall of the guide cylinder 12 is provided with communication holes at equal intervals (every 40 cm) along the same vertical direction, and the communication holes are mainly used for communicating liquid levels such as exhaust and measuring media. The supporting pieces 14 are distributed in the guide cylinder 12 at equal distance (60 cm) from top to bottom, the supporting pieces 14 are made of high-temperature resistant ceramic materials such as alumina, zirconia, magnesia ceramics or high polymer materials, and as shown in fig. 4, the shape of the supporting pieces 14 is in a streamline structure; as shown in fig. 5, the end support 15 is made of stainless steel material and is arranged at the end of the guide cylinder, so that the support 14 is prevented from falling into the measuring medium after being broken.
The compensating structure 13 is arranged on the guided wave core bar 10, the diameter of the compensating structure 13 is 1cm larger than that of the guided wave core bar 10, the compensating structure is arranged in a stable steam flow field, the steam compensating section is increased, when the high-frequency electromagnetic wave reaches the starting point of the steam compensating structure, the time t1 is recorded, when the high-frequency electromagnetic wave reaches the end point of the steam compensating structure, the time t2 is recorded, the length H of the steam compensating structure is fixed, the wave speed of the steam environment can be obtained according to H/(t 2-t 1), and therefore the actual liquid level is compensated. The upper part of the guided wave core bar 10 is inserted into the second heat insulation sealing piece 8, the first heat insulation sealing piece 6 and the compression nut 2, the middle section of the guided wave core bar 10 is connected with a compensation structure 13, and the lower part is inserted into a measuring medium.
The heat dissipation section 5 is provided with a sealing test hole 16. The seal test hole 16 is formed by performing pressure test on the assembled measuring component by adopting 16MPa nitrogen, and if the pressure is stable, the sealing test hole has good sealing performance and adopts surfacing seal.
The invention has the following advantages:
the measuring assembly has three layers of sealing structure designs of an upper part, a middle part and a lower part, and the lower part adopts an inverted cone sealing structure, a graphite gasket sealing and a surfacing sealing; the first heat insulation sealing piece of the middle sealing structure has good sealing and decompression effects; the upper sealing structure (O-ring and compression nut 2) enables the final sealing. In order to verify the long-term sealing performance of the detector, a nitrogen sealing test channel is arranged, and after the sealing test is qualified, the sealing channel is welded.
The starting point and the end point of the compensation structure are all arranged in a stable and difficultly-condensed area, namely the device is arranged at the position 400-500 mm below the top of the guide cylinder, and the steam flow field at the position is stable and is not influenced by the steam communication pipe. The compensation structure is properly prolonged, the steam compensation section is adaptively prolonged according to the measurement range, at least the length of 400-1300mm is reached, and the compensation error magnification is reduced.
And the unique condensate water is used for diversion. The second heat insulation sealing piece 8 adopts an inverted cone structure, the condensation water can not be accumulated and can flow down along the core wire of the guided wave rod in time, the condensation water timely dredging function is realized, and the influence of the condensation water on the measurement of the instrument is avoided.
Claims (6)
1. A high temperature, high pressure seal compensation formula guided wave radar level gauge measurement assembly, its characterized in that: the device comprises an instrument isolation cover, wherein an upper sealing structure is arranged at the lower part of the instrument isolation cover, a heat dissipation section is arranged between the upper sealing structure and a middle sealing structure, a lower sealing structure is arranged at the lower section of the middle sealing structure, a shell is sleeved outside the middle sealing structure, a flange is connected to the outer part of the shell, a guide cylinder is connected to the lower part of the shell, and a compensation structure and a support piece are arranged in the guide cylinder;
the upper sealing structure comprises a compression nut and a sealing ring, wherein the compression nut is arranged in the instrument isolation cover, a through hole is formed in the middle of the compression nut, the upper part of the guided wave core rod penetrates through the through hole of the compression nut, the lower part of the compression nut is connected with a heat dissipation section, the heat dissipation section is connected with the instrument isolation cover, a through hole structure is formed in the middle of the heat dissipation section, and a middle sealing structure is arranged in the through hole;
the middle sealing structure comprises a first heat insulating sealing piece, a guided wave core bar is sleeved in the middle of the first heat insulating sealing piece, the sealing ring comprises an inner sealing ring and an outer sealing ring, the inner sealing ring is arranged on the inner side of the top end of the first heat insulating sealing piece, and the outer sealing ring is arranged on the outer side of the top end of the first heat insulating sealing piece;
the lower sealing structure comprises a first graphite gasket, a second graphite gasket and a second heat insulation sealing piece;
the lower part of the heat dissipation section is sleeved in the shell, the bottom of the heat dissipation section is contacted with a second heat insulation sealing piece, a through hole is formed in the middle of the second heat insulation sealing piece, the heat dissipation section is provided with an inner sealing structure and an outer sealing structure, the outer sealing structure is formed by installing a second graphite gasket between the second heat insulation sealing piece, the heat dissipation section and the shell, and the first graphite gasket is installed between the second heat insulation sealing piece and the first heat insulation sealing piece.
2. The high temperature and high pressure seal compensation type guided wave radar level gauge measuring assembly according to claim 1, wherein: the second heat insulation sealing piece is provided with a condensed water diversion structure and adopts an inverted cone structure.
3. The high temperature and high pressure seal compensation type guided wave radar level gauge measuring assembly according to claim 1, wherein: the outer part of the shell is sleeved with a flange, the guide cylinder is positioned below the flange, and the guide cylinder is connected with the shell.
4. The high temperature and high pressure seal compensation type guided wave radar level gauge measuring assembly according to claim 1, wherein: the cylinder walls of the guide cylinders are equidistantly distributed with communication holes along the same vertical direction, supporting pieces are equidistantly arranged in the guide cylinders from top to bottom, and the tail end supporting pieces are arranged at the end parts of the guide cylinders.
5. The high temperature and high pressure seal compensation type guided wave radar level gauge measuring assembly according to claim 1, wherein: the middle of the guided wave core rod is provided with a compensation structure, the diameter of the compensation structure is larger than that of the guided wave core rod, the upper part of the guided wave core rod is inserted into the sealing piece, the first heat insulating sealing piece and the compression nut, the middle section of the guided wave core rod is connected with the compensation structure, and the lower part of the guided wave core rod is inserted into the measuring medium.
6. The high temperature and high pressure seal compensation type guided wave radar level gauge measuring assembly according to claim 1, wherein: and the heat dissipation section is provided with a sealing test hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310701981.1A CN116429208B (en) | 2023-06-14 | 2023-06-14 | High-temperature and high-pressure sealing compensation type guided wave radar level gauge measuring assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310701981.1A CN116429208B (en) | 2023-06-14 | 2023-06-14 | High-temperature and high-pressure sealing compensation type guided wave radar level gauge measuring assembly |
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| Publication Number | Publication Date |
|---|---|
| CN116429208A CN116429208A (en) | 2023-07-14 |
| CN116429208B true CN116429208B (en) | 2023-10-20 |
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| CN202310701981.1A Active CN116429208B (en) | 2023-06-14 | 2023-06-14 | High-temperature and high-pressure sealing compensation type guided wave radar level gauge measuring assembly |
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| JP2008128717A (en) * | 2006-11-17 | 2008-06-05 | Ube Techno Enji Kk | Level meter and level measuring system |
| CN106796138A (en) * | 2014-10-13 | 2017-05-31 | 霍尼韦尔国际公司 | For the use of high temperature and/or the elastic sealing element of high pressure sealing in guided wave radar level measurement device |
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